Mila Kunis and Ashton Kutcher are parents for the second time.
A publicist for the actress confirmed Kunis had given birth.
The publicist, Melissa Raubvogel, did not provide further details on the baby, including whether it's a boy or girl.
But dad Ashton may have spilled the gender beans.
In an October appearance on NBC's Today, he said the couple's two-year-old daughter, Wyatt, was pointing to her mother's belly and saying, "baby brother".
Ashton and Mila, who were cast-mates in the sitcom That '70s Show, married in July 2015.